Part A Engineering stress and strain are calculated using the actual cross-sectional area and length of the specimen. True or false?

True

Explanation:

Engineering stress is the applied load divided by the original cross-sectional area of a material. It is also known as nominal stress. It can also be defined as the force per unit area of a material. Engineering Stress is usually in large numbers.

While Engineering strain is the amount that a material deforms per unit length in a tensile test.  It can also be defined as extension per unit length. It has no unit as it is a ratio of lengths. Engineering Strain is in small numbers.

False

Explanation:

Engineering stress and strain are calculated utilizing  the original gauge lengths and original area.

yes indeed

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